Next let him draw repeatedly the compound curves at the left in the third and fourth rows, before proceeding to the more complex additions at the right.


After the pupil has become proficient with the exercises in Fig. 6, let him draw the curves and ornamental devices in Fig. 7.

Each of the designs in Fig. 8 is enclosed in a rectangle of the same dimensions. There are three sets of horizontal lines, in. turn bisected by vertical lines. Three sets of five totally different designs are based on these lines. Let them serve as an exercise by which they are copied as herewith given. When the pupils have made further progress let them make variations from these, using the same kind of guide lines, but with the endeavor to make new and original designs.
Snow Crystals. Fig. 9 shows four snow crystals greatly enlarged. They are formed by hexagons, or two equilateral triangles with apexes in opposition. To draw them by means of the latter proceed as in Fig. 10. Draw the horizontal line a. Bisect it as at b. Each oblique line in c equals the horizontal line a. Describe another triangle inverted as at d. Then proceed to construct the crystals on the lines of the triangles as shown in Fig. 11.



Rosettes
To make a rosette or medallion with four or eight units or sections, as shown in Fig. D. Draw one-eighth of the entire design, as shown in Fig. A at a. Reverse a, add b, in Fig. B, forming one-fourth of the rosette. Reverse this quarter, as shown in Fig. C, thus forming half of the design. Reverse this once more and the design is completed, as shown in Fig. D.
If an eight-point rosette is desired add points as shown in heavv lines in Fig. D.